Amp/Preamp Asylum

I have a 24-year-old Carver Lightstar 2.0

69.126.51.7

Mr Steed

To me it sounds like it's getting harsh sounding.
Over sibilance.
I doubt there is anyone to service this unit any longer.
It does have two large filter caps.
Any ideas.

Follow Ups:

RE: I have a 24-year-old Carver Lightstar 2.0 - Doublej 16:55:51 05/17/22 (10)
Try here.
- https://www.carveraudiorepair.com/serv.html (Open in New Window)
- Thanks. - Mr Steed 16:57:51 05/17/22 (9)
  I'll call them tomorrow.
  - RE: Thanks. - pictureguy 22:08:13 05/20/22 (8)
    Output devices MAY have been International Rectifier IGBTs which I know Carver used at some point.
    
    Can you get a Schematic?
    
    How do the big PS caps LOOK? Any 'signs'?
    Too much is never enough
    - I have the schematics. - Mr Steed 19:17:52 05/22/22 (7)
      I also called the repair facility mentioned in the other post.
      For $1400.00 they will replace every cap in the unit.
      They said the cost of caps have become insane.
      So that's what I'm going to do.
      If I was younger, I could have replaced them myself.
      Not any longer.
      Thanks
      - RE: I have the schematics. - Doublej 04:13:52 05/24/22 (0)
        
        In Reply to: RE: I have the schematics. posted by Mr Steed on May 22, 2022 at 19:17:52
        
        That price puts you in Stratos (Odyssey Audio) territory.
      - RE: I have the schematics. - pictureguy 21:31:17 05/22/22 (5)
        
        In Reply to: RE: I have the schematics. posted by Mr Steed on May 22, 2022 at 19:17:52
        
        'Caps have become insane' could mean one of several things.
        Cost has increased dramatically, is what I think the guy was aiming at.
        And you mainly need any WET cap replaced which typically is in the PS
        
        Other meaning? Cost hasn't moved at all....'Thats INSANE! they should cost a LOT more!'
        
        Or the caps have lost their mind (s) and now think they are resistors or inductors.??
        Too much is never enough
        
        Noooooooooooooooooooooooooooooooooooo - Mr Steed 10:20:50 05/23/22 (4)
        
        In Reply to: RE: I have the schematics. posted by pictureguy on May 22, 2022 at 21:31:17
        
        They've gotten high enough.
        Or I buy another amp.
        Decisions, decisions.
        And something to replace this amp has got to be even more money.
        
        RE: Noooooooooooooooooooooooooooooooooooo - s.a.b. 13:34:36 05/23/22 (3)
        
        In Reply to: RE: Noooooooooooooooooooooooooooooooooooo posted by Mr Steed on May 23, 2022 at 10:20:50
        
        I have the Carver a760x which was designed by James Croft after Bob Carver left the company and is based on the Lightstar.
        
        I had it recapped a few years ago. As I recall, the cost was around $600 but I'm glad I had it done as it drives my Maggies so well.
        
        RE: Noooooooooooooooooooooooooooooooooooo - pictureguy 14:10:11 05/23/22 (2)
        
        In Reply to: RE: Noooooooooooooooooooooooooooooooooooo posted by s.a.b. on May 23, 2022 at 13:34:36
        
        I had the original Carver M400t which needed some work. The Cube.....
        I was game since I had little to lose.
        Interior / Disassembly?
        Worse than a Chinese Puzzle Box. I gave up fairly quickly when I could NOT see a way forward which gave me an easy reassembly. Bad on Bob....
        
        Conventioanal configuration is much easier to work on....that's for sure.
        Too much is never enough
        
        Actually - Mr Steed 15:43:02 05/23/22 (1)
        
        In Reply to: RE: Noooooooooooooooooooooooooooooooooooo posted by pictureguy on May 23, 2022 at 14:10:11
        
        The inside of a Lightstar 2.0 is very clean.
        It looks like it wouldn't be much of a hassle to work on.
        
        2.0 (Open in New Window)
        
        RE: Actually - pictureguy 15:49:59 05/23/22 (0)
        
        In Reply to: RE: Actually posted by Mr Steed on May 23, 2022 at 15:43:02
        
        Exact Opposite of the Cube.
        Nice, clean and open. Looks repairable and not a contest to disassemble....
        Too much is never enough

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